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Finding the Fourth Proportional to 834.32, 1,252.23 and 444.65

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Solution

The fourth proportional to 834.32, 1,252.23 and 444.65 is: 667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.32 : 1,252.23 = 444.65 : x
  2. Step 2: Convert to fraction form
    834.32/1,252.23 = 444.65/x
  3. Step 3: Cross multiply
    834.32x = 1,252.23 × 444.65
  4. Step 4: Simplify right side
    834.32x = 556,797.81
  5. Step 5: Solve for x
    x = 556,797.81/834.32
  6. Step 6: Final answer
    x = 667.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.